public class ThreadSecur1 {
static int count = 0;
    public static void main(String[] args) throws InterruptedException {
        Object object = new Object();

        Thread t1 = new Thread(()->{
            for (int i = 0; i < 50000; i++) {
                synchronized (object) {
                    count++;
                }
            }
        });
        Thread t2 = new Thread(()->{
            for (int i = 0; i < 50000; i++) {
                synchronized (object){
                    synchronized (object){
                count++;
                    }
            }}
        });
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println(count);

    }
}
